When leaders of the G20 assemble in St Petersburg next month, all eyes will be on the body language between the host Vladimir Putin and Barack Obama, who this week snubbed the Russian leader by cancelling a separate bilateral summit in Moscow.
But the cameras will also be keen to capture the chemistry between Mr Putin and Xi Jinping, the new Chinese leader who has quietly encouraged the growing rapprochement between their two nations.
Disenchanted by its recent dealings with Mr Putin, the Obama administration is publicly downgrading the sort of relationship it expects to have with Russia. Yet one unintended consequence of such an approach could be to push Russia and China closer together in ways not helpful to US interests.
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